Crossover-statistics

For simulation of evolution I need to know how often crossover occures
for both human and other species.
1. how often does deletion, translocation and duplication of genes
during crossover occur?
2. is crossover of the type stated in question 1 restricted to sexual
mating?
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Tom Kise (tomk at ifi.uio.no)
Casparisgt. 11 (http://www.ifi.uio.no/~tomk)
0174 OSLO (22 11 23 65)